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AMBRo'sE TOWER, or 4NEW YORK, N. Y. Letters Patent No. 65,617, datedJune 11, 1867.

IMPROVED CAP FOR UPHOLSTERER'S SPRINGS.

TO WHOM IT MAY CONCERN:

Beit known that I, the undersigned AMBROSE TOWER, of the city, county,and State of New York, have invented a new and valuable Improvement inCaps for Upholstery Springs; and I do hereby declare that the 'followingis a full, clear, and exact `description* ofthe construction andoperation of the same, referencebeing :had to the annexed drawingsmaking a part of this specification, and to the letters and figures ofreference 'marked thereon.

vThe object of my invention is to provide a cap for upholstery springsthat shall be cheaper in construction and more convenient and durable inuse than any similar device heretofore known or used. To this Vend Iconstruct a cap of cast iron, brass, or composition, castin suitablemould or in sand, or I construct it` (which is preferable) of sheetiron, brass, tin, zinc, or other malleable metals by stamping orpressing the same withl suitable stamsp, dies, and presses. v i

Figure 2 of the drawings isa representa-tion of the upper side of mycap. It is constructed in a circular lllorm, and has four long aru'ls orsupports marked A, and four shorter arms marked B, with eyes in the ends thereof', so arranged as to beeasily coupled withother caps, and withthe sides of the frame, by couplings C. The arms B also extend inward asshown ou the drawings, to afford additional supports to the mattress orother article oi' upholstery placed thereon. These arms may be madeofany size the case may req-nire, or the cap may be widened, if desirable,so 'as 'to furnish the support required. I usually fasten these caps tothe sides of the frame by a staple hook and coupling, as shown at D onthe drawings. It is sometimes preferable to use a coupling of Indiarubber for this purpose, and for some purposes no'attachment to theframe will be required.

Figure 1 shows my method of adjusting the cap to the spring. The lowerside of my cap is constructed with a groove that extends around theentire circle thereof. The upper end of the spiral spring is placed insaid groove, and, by turning either the spring or the cap halt' around,is made secure under the eyes G. These eyes G are usually` two innumber, and are placed directly opposite each other below the grooveabove mentioned. By this device the spring is readily and securelyattached to the cap, and may be detached therefrom with great easewhenever it is desirable so to do.

The advantages of my invention consist 'in securing combined action anduniformity in the movements of 'the springs by coupling them alltogether; lin the ease with which the cap is attached to and detachedfrom the springs; in the strength and permanency of said attachment; inthe supports furnished the upholstery by the arms A and B; and in thesmall expense of manufacture.

What I claim as my invention, and desire to secure by Letters Patent, is

VA grooved metallic cap for upholstery springs having arms A and B, eyesG, and attachments D, constructed I AMBROSE TOWER.

and arranged substantiaily `as herein specified Witnesses:

J. C. SMITH, G. L. ANDREws;

